<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3"
      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout">

<head>
  <meta charset="utf-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <title>index</title>
</head>
<body>
<h1>首页</h1>
</body>
</html>